Grain-door.



osKAR camlsoir, 0F rELoH, MICHIGAN.

GRAIN-DOOR. l

speeliacaaon'of Letters-remt.

Patented Oct. 10, 191 1.

Application led March 1, 1911. Serial No. 611,677.

To al@ whom 'it may concern:

Be it known that I, OsKAifCAnLsoN, a citizen of the United States, residing at Felch, Dickinson county, Michigan, have invented certain 'new and useful Improvements in Grain-Doors, of whieh.the following is a specification.

This invention relate's to grain door construction, especially doors for railway grain ears.

The object ofthe invention is to provide grain doors of simple constructiom-of convenient. manipulation and control7 and easy installation.

vscribed in detail,

Fig. is a cross section of a portion otl a earand edge views of the grain door in both open and closed positions. Fig. 4 is a per spective detail view.

In the several views 2 represents one of the sides of a railway car, 3 the usual side door opening and l the usual slide-door running on rails 5 and 6.

7 and 8 represent two sections of a grain door hinged together at their junction line A9 to swing outwardly, 10, 10v in Fig. 3 representing the hinges. The two door Sections 7 and S arel supported vertically upon a rod 11v engaged by ears or eyes 12 and 13 upon straps 14 secured to said door sections, and the doors are slidable upon said rod within the limits of stops 15 and 1G for the door` 7 and similar` stops 17 and 1S for the door 8. These stops are preferably collars shrunk upon the rod 11. 'lhe latter rod is itself movable vertically on vertical rods 1t) and 20 within the car, the rod ll being' provided with ears or eyes 2l and Qt-which engage the respective rods 1t) and 20.' The latter have each a lient. or horizontal portion 23 at the rods upper end and a similar lient. or horizontal portion i4-at its lower end, so that when the doors 7 and 8 are in their closed position shown in -Figs. 1 and 3 the eyes on the ends of the horizontal rod 11 are engaged with the horizont-al portions 24 of the vertical rods which prevents prying up or lifting the doors from the outside hefore they are unlocked to swing open on their hinges. The horizontal upper portions 23 of the .vertical rods 19 and )tl support thc eyes Q1 and 22 when the grain doors are fully opened and swung into horizontal position against the ceiling ot the ear, this complete suspension oi the grain doors heing coinpleted l'iv means ot a hook Q5 suspended from the ceiling 2li ot the car, said hook licing, as shown in Fig. I-S, engaged with the lower edge of the grain door, or grain door sections 7v and 8.

1`he two sections 7 and S of the grain door are locked against n'iovement on their hinges 1() hy means oi a latch-bar 27 pivoted at 2S wit-hin a strap 29 to the door section 7. 'lhe door section 8 is provided with a catch 3() which is adapted to engage the latch-liar 27. The free end ot the latch-bar has pivoted thereto at 31 a lever or handle 32. which when the grain door sections are closed as in Fig. 1, is -folded over the latch-bar 27 and when the doors are to be opened is swung out away from the latch-bar as an extension orV handle therefor projecting, as

.shown in 'ltigx 2, to a point. 'laterally of the car door opening This handle extension is for the'pnrpose of enabling the person about to open the grain doors to stand at the',

side of the door opening and Control the grain door sections` opening movement on their hinges and limit. the initial tion/of grain to the desired extent'. In Fig. 2 the door sections are shown partly open, or to form a small angular opening at 34 between the door sect-ions and the floor of the car, the size oi the opening at I-i-l being7 as stated., regulated hy the operatoi"s control of thel handle 32. A stop or support 35 is provided i'or the latch-liar to drop into. On one ol the door set-tions 7 and 8 is mounted aV strap having an S-shaped portion providing be engaged by a U-bolt catch 30; The handle is locked on the staple by means ofa pin 42 which is engaged with' swinging on their hi fies from said position. he main supports for the `upper edges of the door sectlonsf'? and 8 are, as previously stated, the horizontal upper portions 23 of or staple 41 on'the I- the staple outside of the handle, as shown A the side-door of When thus sealed the grain in Figs. 1 and 3. The pin 42 is attached to a short chain 43 which is suspended from an eye bolt 44, which prevents loss of the pin. In the lower end of said pin is an eye through which may be threaded the usual seal strap, so that the grain doors, as well as the car, may Vbe sealed. doors cannot be opened without breaking the seal, or alock taking the place of the seal, as the doors can- 'not be pried upward by reason of the horiz'ontal portions 24 of the vertical rods engaging. the eyes on theends of the horizontal rod 11.

1 b 3.2 will be reeased y removing the staple pin swunor out as in 2 and held by the dperato until the desired ainountlof gra-in is permitted to escape. A small quantity may be Iii operation the handle taken andthe doors 'closed again, or they will be gradually opened until relieved entirely from grain pressure from behind. When enough grain has been released-to permit convenient entrance to the car the two door sections are slid up on 'the vertical rods, the eyes of the rod 1l en the horizontal portions 23 of t e vertical rods, the hook 37 engaged with the short rod 38 and the door'swung into horizontal position, as'shownin Fig. 3, and thus supported with the aid of the hook 25 until the car is unloaded.

If it is desire-d to temporarily remove the grain door sections entirely they may be conaged' with veniently uncoupled from the horizontalerod 11, the latter supported until needed again 50 upon the upper horizontals 23 of the/vertical rods and the grain door sections'Lstored in any convenient place,fthe. vert-ical rods -19 and 20, the horizontal rod l1 and the hook 25 remaining as the only fixed parts of the Cfu". y

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination with a door opening, of door-sections spanning said opening, said sections hinged together for opening move-- ment on their hinges, a rod upopftvhich said door sections are slidably monted for vertical support during angular fmovementv relative'. to each other, vertical rodsl upon which said rod is slidably mounted, and means for locking the latter rod against vertical movement.

2. The combination with a door opening, 0f a pair of door sections spanning'4 'said opening, said sections pivoted together at their junction, means for locking sa'id door sections against movement on their pivots,

lmeans supporting said doors laterally for vertlcal movement,- means ff locking the door sections against vertical 1n vement, and

'means for supporting said sections out of the way'overhead in a horizontal position.

3. A gram door consisting of two sections hinged together for angular opening and closing Amovement, means supporting said door sections for sliding movementin connection with their angular movement, means' supporting the sections for movement vertically as a single door, and means 'operable from one side of thedoor-opening-for controlling the combined angular and sliding movementl of said door sections. In testimony whereof I have hereunto's'et my hand in the presence of two subscribing witnesses.

OSKAR CARLSON. Witnesses:

CARL A. CARLSON, JoHN GusrArsoN. 

